QBLP679E-IWK-CW

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LED indication is the use of light emitting diodes, or LED\'s, to convey information about a product, process, or system. Discrete LED indication is the most common type and is used to show the presence or absence of one or more states without displaying any actual data. A common example of this is a power indicator light, which may be green or red with no accompanying information as to how much power is being used or from where.

The QBLP679E-IWK-CW belongs to this discrete LED indication category, and it is a product of Cree Inc. This device is a six-pin surface-mount light emitting diode package that produces three distinct wavelengths and is the perfect choice for applications that require uniform, high-intensity lighting. The device features a maximum power dissipation of 2.94 mW, and a maximum forward current of 30mA. It has a maximum reverse voltage of 5V and a radiant intensity of 480 mcd.

The primary application field of the QBLP679E-IWK-CW is consumer electronics and automotive, as it is especially suitable for compact designs due to its small size. The device generates a bright, directional light, and its three distinct wavelengths make it ideal for indication displays, as well as for field-light and backlight applications. Also, thanks to its uniform color, it is an excellent choice for perimeter lighting, night-illuminated buttons and membrane switches.

The working principle behind this device can be summed up in three stages: the electrical signal has to be converted into photons, these have to be amplified, and finally they have to be collimated into a narrow beam. The first step is to convert the electrical signal into photons using a semiconductor material. The semiconductor material is a layer of atoms that, when excited, emit photons of different wavelengths and energy levels depending on their chemical composition. In the case of the QBLP679E-IWK-CW, the semiconductor material is gallium nitride (GaN), which produces light in the green, blue and yellow range.

The second step is to amplify the emitted photons with a dynamic amplifier, which is nothing more than an array of tiny transparent reflectors that efficiently convert the electrical signals into light. The efficiency of the dynamic amplifier must be high enough to ensure that the device is able to reach the desired brightness levels. Finally, the last step is to direct the amplified light onto a light collector that collimates it into a narrow beam.

In conclusion, the QBLP679E-IWK-CW is a surface-mount LED device that is primarily used in the consumer electronics and automotive markets. It is a perfect choice for applications requiring uniform, high-intensity lighting, due to its three distinct wavelengths and maximum power dissipation of 2.94 mW. The working principle behind this discrete LED indication is based on three main steps: the electrical signal is converted into photons, these are amplified with a dynamic amplifier, and finally the amplified light is collimated into a narrow beam.

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